78932988 has 48 divisors (see below), whose sum is σ = 210182560. Its totient is φ = 25598592.

The previous prime is 78932977. The next prime is 78933007. The reversal of 78932988 is 88923987.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5881 + ... + 13872.

Almost surely, 2^78932988 is an apocalyptic number.

It is an amenable number.

78932988 is an abundant number, since it is smaller than the sum of its proper divisors (131249572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78932988 is a wasteful number, since it uses less digits than its factorization.

78932988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19803 (or 19795 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 78932988 is about 8884.4238980364. The cubic root of 78932988 is about 428.9626844163.

Subtracting 78932988 from its reverse (88923987), we obtain a palindrome (9990999).

The spelling of 78932988 in words is "seventy-eight million, nine hundred thirty-two thousand, nine hundred eighty-eight".